| Availability (valid 402 returned) | 100.0% of 71 probes · single vantage |
| Median 402 handshake | 272ms |
| p90 handshake | 1214ms |
| Catalog price (advertised) | $0.0016 |
| Live price (median demanded) | $0.0016 |
| Price status | match |
| Protocol | x402 v2 |
| Category (our classification) | content-media |
| Payment receiver | 0xc508…36a9 · stable since Jul 12 |
| Base USDC settlement to this receiver wallet (30d' measured by us) | x402-plausible (amount matches a listed price): $0 · 1 transfers · 1 distinct senders. All USDC inflow' upper bound incl. non-x402: $0 · 1 transfers. |
| Discovery (.well-known/x402) | not found |
| Catalog volume (their metric) | 1 calls/30d |
Generate scannable QR codes from any text, URL, or structured payload (WiFi, vCard, SMS, email, geo, crypto). Returns PNG by default with JPG, WebP, and SVG output, plus optional error-correction, sizing, color, version, and encoding controls. Simple cURL …
What this grade does and doesn't measure: it scores the paid-request handshake — whether the service returns a spec-valid 402 payment challenge, how fast, and whether its price is honest. We do not pay these endpoints yet, so we do not verify that the paid response returns correct or complete content. Availability is a probe success rate measured hourly, from a single network vantage for this service.
Operator of qr.reyn.tools? Dispute this rating. Scores are opinions based on automated measurements at the stated times.